In-situ Mössbauer spectroscopic study of the behaviour of tin(II) chloride during coal hydrogenation

✍ Scribed by Prem P. Vaishnava; Haw-jye Shyu; Pedro A. Montano

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 526 KB
• Volume: 60
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(81)90165-4

✦ Synopsis

In-situ Mossbauer spectroscopy has been used to study the catalytic role of SnCI, and its interaction with the IL6 coal during hydrogenation.

The measurements have been recorded under three different atmospheres of nitrogen, hydrogen, and hydrogen in the presence of a heavy distillate solvent SK-II. The study has shown that both tin and chlorine can enter the coal structure at an early stage of hydrogenation. The presence of chlorine has been shown to cause the cleavage of ether-oxygen linkages in the coal. Tin (II) sulphide is the predominant form of the catalyst after the hydrogenation and is the product of the scavenging of coal sulphur by tin. The study has also shown the formation of FeCl,,xH,O (x= 1,2) as a result of the reaction between pyrrhotites (Fe(, _$, formed by the decomposition of Fe&) and hydrochloric acid in the nitrogen and the hydrogen atmospheres.